Answer:
ypu need to use the method before change and after
The volume of the sphere is expressed in the formula V = 4/3 pi r^3. The rate of change of volume is determined by differentiating the formula: dV/dt = 4pi r^2 dr/dt. When we substitute 500 cm3/min as dV/dt and 30 cm as r. Then dr/dt is equal to 0.0442 cm/min
The answer is B.4 because you need to divide 76 by 8 which will give you 9.5. Now, you can't have half of a person; so just cut it off. So divide that again by 2 and your answer is B.4 tents.